Ok so here it is I have been using the bodybug for three weeks tracking everything religiously.Since week 1 I have lost 6.7lbs total. This thing really works. If anything it keeps you honest and active . You can see at anytime during the day the amount of calores you have burned and the amount you need to burn as well as your deficit based on your food log. If anything it underestimates the calories I have burned and gives me a better cushion than expected. According to my weekly deficit I should be losing about 1.5lbs a week. This week I have lost 2.6lbs. As I get leaner I believe I am burning my calories more effeciently and the formula the bug uses may not take that into account as time goes on. So if anything I would say this does work and it is worth investing your time and energy in. Good luck everyone on your journey.